Well, the graphics benchmark made me pretty much skeptical about this source. Plus it's by an unknown Vietnamese source, so I'll put this as a rumor for now.A Vietnamese site called Tinhte.vn has managed to get the new iPad ahead of schedule, treating us with a video of the device’s unboxing and revealing some previously unknown specifications.
The new iPad — the third-generation device lacks a new name or additional numbers, causing some consternation among us journalists, so we refer to it as “the new iPad” — apparently has 1 GB of RAM memory (up from 512 MB in iPad 2).
Furthermore, its A5X processor ticks at 1 GHz, exactly the same clock speed as the A5 CPU in the iPad 2.
Interestingly enough, the fact that its graphics chip now has four cores wasn’t enough for a big increase in speed, at least according to popular testing software GeekBench, in which the new iPad scored 756. For comparison, the iPad 2 had a GeekBench score of 721, and the original iPad scored 442. We’re guessing that this particular benchmark doesn’t fully tap into the new iPad’s quad-core graphics chip.
1GHz clock speed is sure disappointing though (if it's real). I guess we can only find out at actual launch.
SOURCE: http://mashable.com/2012/03/13/new-ipad-unboxed-and-tested/
The video is in the source if you're interested.